theorize

verb

the·​o·​rize ˈthē-ə-ˌrīz How to pronounce theorize (audio)
ˈthir-ˌīz
theorized; theorizing

transitive verb

1
: to form a theory about
2
: to propose as a theory
theorization noun
theorizer noun

Examples of theorize in a Sentence

Many scientists have theorized about the possibility of life on other planets.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
And as Glasnow theorized Sunday, his new throw might be an unintended culprit. Jack Harris, Los Angeles Times, 29 Apr. 2025 But in Read’s first trial, the defense theorized O’Keefe was beaten in the home and mauled by the homeowners’ German shepherd, Chloe, and then tossed out in the snow to die. Jean Casarez, CNN Money, 25 Apr. 2025 That feature is what prompted the team of researchers to theorize that the car could have been reserved for Rear Admiral Frank Jack Fletcher, as the Yorktown served as his flagship during World War II. Eric Lagatta, USA Today, 24 Apr. 2025 This led researchers to theorize that when competition is reduced, venomous predators may actually evolve concoctions better suited to specific prey. Andrew Paul, Popular Science, 23 Apr. 2025 See All Example Sentences for theorize

Word History

First Known Use

1644, in the meaning defined at transitive sense 1

Time Traveler
The first known use of theorize was in 1644

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Cite this Entry

“Theorize.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/theorize. Accessed 2 May. 2025.

Kids Definition

theorize

verb
the·​o·​rize ˈthē-ə-ˌrīz How to pronounce theorize (audio)
theorized; theorizing
: to form a theory : speculate
theorizer noun

More from Merriam-Webster on theorize

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